Start around 3:15 PM at Stephansplatz and St. Stephen’s Cathedral, Vienna’s most atmospheric introduction to the city. Walk a full loop around the cathedral before going inside; the patterned roof and Gothic south tower are best appreciated from the square. The cathedral interior is generally open until early evening, though service times can limit access. Allow about 45 minutes, and dress respectfully. From here, Mozarthaus Vienna is an easy five-minute walk through the pedestrian lanes of the Innere Stadt. Mozart’s former apartment is open daily, usually until around 7 PM; tickets are roughly €12–15, and the audio guide makes the one-hour visit much more engaging than simply viewing the rooms.
Continue to Café Central near Herrengasse, arriving around 5:30 PM. This grand café can have a queue, particularly in August, so put your name down and expect to wait 10–20 minutes if necessary. Order a classic melange with an Esterházy or apple strudel; plan on €10–20 per person. Afterwards, stroll toward Hofburg Palace via Michaelerplatz, where the changing light brings out the scale of the imperial façades. The palace complex and exterior courtyards are ideal for an unhurried walk at this hour; the museums generally close earlier, so treat this as an outdoor visit rather than trying to add an interior tour.
Finish at Plachutta Wollzeile, about a 10-minute walk from the Hofburg, for dinner around 8 PM. Reserve ahead if possible and order the tafelspitz if you want the quintessential Viennese meal, served with traditional sides such as chive sauce and apple-horseradish. Expect roughly €30–50 per person before drinks. After dinner, Stephansplatz is only a short walk away for an evening look at the illuminated cathedral, while the central U-Bahn stations provide straightforward connections onward.